Update NEWS for release

Author: andrjohns

NEWS.md

@@ -1,3 +1,12 @@
+# QuickJSR 1.2.0
+  - Fix installation under C++11
+  - Fix installation for FreeBSD
+  - Fix detection of atomics support under Windows and ARM64
+  - Fix module loading
+  - Add `$get()` and `$assign()` methods to `JSContext`
+  - Support passing R environments, getting and setting values
+  - Add global R object with access to package environments
+
 # QuickJSR 1.2.0
   - `Rcpp` dependency replaced with vendored `cpp11` headers
   - `R6` dependency removed